Paul Dix is a senior developer at Kgb Web, where he works with Ruby, Java, Python, and C++ programmers in a full services-based environment. In the past he has worked at Google, Microsoft, McAffee, Air Force Space Command, and multiple start-ups, filling positions as programmer, software tester, and network engineer. He has been a speaker at multiple regional Ruby conferences on the subjects of machine learning and collaborative filtering. Paul is the author of the open source Ruby libraries SAXMachine, Feedzirra, and Typhoues. Paul has a degree in computer science from Columbia University.